package com.ror.java.se.oop.interfacedemo;

public class Demo04Interface {
    public static void main(String[] args) {
        HumanImpl human =  new HumanImpl();
        human.Speak();
        human.Run();

        DogImpl dog = new DogImpl();
        dog.Run(); // dog 没有实现 speak 方法
    }
}
